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Instantaneous Power Signal in Short-Circuit Diagnosis of Induction Motors Using a FEM Model Cover

Instantaneous Power Signal in Short-Circuit Diagnosis of Induction Motors Using a FEM Model

Open Access
|Jun 2026

Figures & Tables

Figure 1.

Geometry Sh90L-4 of an electric motor with a faulty stator part.

Figure 2.

Simulation of the circuitry performed in the Ansys Maxwell software.

Figure 3.

Experimental setup for testing an induction motor with interturn short circuits.

Figure 4.

Terminal board method of performing coil short circuits at a stand.

Figure 5.

Comparison of instantaneous phase current waveforms for the mathematical model and the tested motor at f = 10 Hz, Tl = 100%, and fault Nsh = 5. FEM, finite element model.

Figure 6.

Amplitude spectrum of instantaneous power obtained from the field-circuit (FEM) model for a three-phase induction motor, at f = 50 Hz, Tl = 100%, and fault Nsh = var. FEM, finite element model.

Figure 7.

Amplitude spectrum of instantaneous power obtained from laboratory experiments for the three-phase induction, at f = 50 Hz, Tl = 100%, and fault Nsh = var.

Figure 8.

Indicator for proposal method f = 50 Hz, Tl = 100%, and fault Nsh = var.

Parameters of Sh90L-4 motor_

ParameterRated valueUnit
Power1.5kW
Voltage400V
Current3.61A
Efficiency79.0%
Power factor0.755-
Rotational speed1,410rpm
Torque10.1Nm
DOI: https://doi.org/10.2478/pead-2026-0017 | Journal eISSN: 2543-4292 | Journal ISSN: 2451-0262
Language: English
Page range: 272 - 280
Submitted on: Mar 24, 2026
Accepted on: May 7, 2026
Published on: Jun 8, 2026
In partnership with: Paradigm Publishing Services
Publication frequency: 1 issue per year

© 2026 Mateusz Stanisław Krzysztofiak, Maciej Antal, Adam Gozdowiak, published by Wroclaw University of Science and Technology
This work is licensed under the Creative Commons Attribution 4.0 License.